| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #ifndef __MMC_H__ |
| #define __MMC_H__ |
| |
| #include "os/mynewt.h" |
| #include <disk/disk.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * MMC driver errors. |
| */ |
| #define MMC_OK (0) |
| #define MMC_CARD_ERROR (-1) /* Is there a card installed? */ |
| #define MMC_READ_ERROR (-2) |
| #define MMC_WRITE_ERROR (-3) |
| #define MMC_TIMEOUT (-4) |
| #define MMC_PARAM_ERROR (-5) |
| #define MMC_CRC_ERROR (-6) |
| #define MMC_DEVICE_ERROR (-7) |
| #define MMC_RESPONSE_ERROR (-8) |
| #define MMC_VOLTAGE_ERROR (-9) |
| #define MMC_INVALID_COMMAND (-10) |
| #define MMC_ERASE_ERROR (-11) |
| #define MMC_ADDR_ERROR (-12) |
| |
| extern struct disk_ops mmc_ops; |
| |
| /** |
| * Initialize the MMC driver |
| * |
| * @param spi_num Number of the SPI channel to be used by MMC |
| * @param spi_cfg Low-level device specific SPI configuration |
| * @param ss_pin GPIO number of the SS pin |
| * |
| * @return 0 on success, non-zero on failure |
| */ |
| int |
| mmc_init(int spi_num, void *spi_cfg, int ss_pin); |
| |
| /** |
| * Read data from MMC |
| * |
| * @param mmc_id Id of the MMC device (currently must be 0) |
| * @param addr Disk address (in bytes) to be read from |
| * @param buf Buffer where data should be copied to |
| * @param len Amount of data to read/copy |
| * |
| * @return 0 on success, non-zero on failure |
| */ |
| int |
| mmc_read(uint8_t mmc_id, uint32_t addr, void *buf, uint32_t len); |
| |
| /** |
| * Write data to the MMC |
| * |
| * @param mmc_id Id of the MMC device (currently must be 0) |
| * @param addr Disk address (in bytes) to be written to |
| * @param buf Buffer where data should be copied from |
| * @param len Amount of data to copy/write |
| * |
| * @return 0 on success, non-zero on failure |
| */ |
| int |
| mmc_write(uint8_t mmc_id, uint32_t addr, const void *buf, uint32_t len); |
| |
| /** |
| * TODO |
| */ |
| int |
| mmc_ioctl(uint8_t mmc_id, uint32_t cmd, void *arg); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __MMC_H__ */ |